body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, legend, input, textarea, button, p, blockquote, th, td
{margin: 0;padding: 0;}
body{text-align: center;}
li{ list-style: none;}
a{text-decoration: none;}
input,button,img{border: none}
.active{
    color:#409EFF
}